| Piú viste - A Tribute To Mars Global Surveyor |
Craters-Unnamed_Defrosting_Crater-PIA03921-01.jpgUnnamed Defrosting Crater (Absolute Natural Colors; credits for the additional process. and color.: Dr Paolo C. Fienga - Lunexit Team)227 visiteCaption NASA originale:"This MGS-MOC image shows a Surface in the South Polar Region, covered by CO2 Frost. In this springtime scene, the Frost has begun to sublime so that Sandy Surfaces exhibit an abundance of Dark Spots. The circular depression is probably the remains of an Impact Crater. In summer, the Spotted Surfaces in this image would be darker than their surroundings, because they are patches of Windblown Sand".
Location near: 67,6° South Lat. and 254,3° West Long.
Image width: ~3 Km (~1,9) mi
Illumination from: upper left
Season: Southern SpringMareKromium
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South_Polar_Region-PIA08649-1.jpgFeatures of the South Polar Regions (Absolute Natural Colors; credits for the additional process. and color.: Dr Paolo C. Fienga - Lunexit Team)227 visitenessun commentoMareKromium
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Phobos_from_Mgs-006-PIA01332.jpgPhobos from Mars Global Surveyor (6)225 visiteCaption NASA:"This image of Phobos, the inner and larger of the two moons of Mars, was taken by the Mars Global Surveyor on August 19, 1998. The Thermal Emission Spectrometer (TES) measured the brightness of thermal radiation at the same time the camera acquired this image. By analyzing the brightness, TES scientists could deduce the various fractions of the surface exposed to the Sun and their temperatures. This preliminary analysis shows that the surface temperature, dependent on slope and particle size, varies from a high of +25° F (-4° C) on the most illuminated slopes to -170° F (-112° C) in shadows. This large difference, and the fact that such differences can be found in close proximity, adds support to the notion that the surface of Phobos is covered by very small particles".
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Vastitas_Borealis-M0002208.jpgVastitas Borealis225 visiteLongitude of image center: 28,18° West
Latitude of image center: 71,71° North
Scaled pixel width: 268,77 meters
Scaled image width: 130,92 Km
Scaled image height: 114,09 Km
Solar Longitude (Ls): 124,16°
Local True Solar Time: 13,96 decimal hours
Emission Angle: 3,67°
Incidence Angle: 53,85°
Phase Angle: 51,48°
North Azimuth: 97,90°
Sun Azimuth: 312,72°
Spacecraft Altitude: 430,41 Km
Slant Distance: 431,19 KmMareKromium
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Vastitas_Borealis-M0307444.jpgVastitas Borealis (Absolute Natural Colors; credits for the additional process. and color.: Dr Paolo C. Fienga - Lunexit Team)224 visiteLongitude of image center: 27,88° West
Latitude of image center: 68,70° North
Scaled pixel width: 1080,62 meters
Scaled image width: 649,17 Km
Scaled image height: 426,91 Km
Solar Longitude (Ls): 184,40°
Local True Solar Time: 14,11 decimal hours
Emission Angle: 3,35°
Incidence Angle: 73,89°
Phase Angle: 76,19°
North Azimuth: 98,87°
Sun Azimuth: 312,30°
Spacecraft Altitude: 429,32 Km
Slant Distance: 429,97 KmMareKromium
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Vastitas_Borealis-M0401165.jpgClouds over Vastitas Borealis224 visiteLongitude of image center: 26,41° West
Latitude of image center: 72,42° North
Scaled pixel width: 269,48 meters
Scaled image width: 131,27 Km
Scaled image height: 114,03 Km
Solar Longitude (Ls): 188,53°
Local True Solar Time: 14,17 decimal hours
Emission Angle: 3,74°
Incidence Angle: 78,86°
Phase Angle: 76,42°
North Azimuth: 98,15°
Sun Azimuth: 311,53°
Spacecraft Altitude: 431,53 Km
Slant Distance: 432,34 KmMareKromium
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North_Polar_Features-Layers-MGS-2-PCF-LXTT.jpgNorth Polar Layers (Enhanced Natural Colors; credits for the additional process. and color.: Dr Paolo C. Fienga - Lunexit Team)223 visitenessun commentoMareKromium
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Vastitas_Borealis-M0307443.jpgVastitas Borealis (Absolute Natural Colors; credits for the additional process. and color.: Dr Paolo C. Fienga - Lunexit Team)223 visiteLongitude of image center: 26,70° West
Latitude of image center: 68,76° North
Scaled pixel width: 1068,74 meters
Scaled image width: 633,33 Km
Scaled image height: 426,66 Km
Solar Longitude (Ls): 184,40°
Local True Solar Time: 14,19 decimal hours
Emission Angle: 0,51°
Incidence Angle: 74,18°
Phase Angle: 73,86°
North Azimuth: 97,77°
Sun Azimuth: 312,39°
Spacecraft Altitude: 429,32 Km
Slant Distance: 429,33 KmMareKromium
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Chaotic_Terrain-Eos_Chaos-01.jpgFeatures of Eos Chaos: Circular Butte (Natural Colors; credits for the additional process. and color.: Dr Paolo C. Fienga - Lunexit Team)223 visiteLocation near: 12,9° South Lat. and 49,5° West Long.
Image width: ~3 Km (~1,9 mi)
Illumination from: lower left
Season: Southern SummerMareKromium
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Chasmas-Melas_Chasma-08.jpgSample scarp edge in layered unit in Melas Chasma or... Frozen Waterfalls on Mars? (7 - Natural Colors; credits for the additional process. and color.: Dr Paolo C. Fienga - Lunexit Team)222 visitenessun commentoMareKromium
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Craters-Unnamed_Crater_with_Tiled_Floor-MGS-PCF-LXTT.jpgUnnamed Crater in Vastitas Borealis (Natural Colors; credits for the additional process. and color.: Dr Paolo C. Fienga - Lunexit) 218 visiteCaption NASA originale:"This MGS-MOC image shows Polygonal Cracks formed in the material that nearly fills an Impact Crater on the Martian Northern Plains. The light-toned patches in the Cracks are the remains of Ice, left over from the preceding Winter.
On Earth, Polygons such as these are most common in the Polar Regions and form in the presence of ground ice. Whether the same is true for Mars remains to be determined, but, certainly, this is a good possibility".
Location near: 65,7° North; 277,5° West
Image width: ~3 Km (~1,9 mi)
Illumination from: lower left
Season: Northern Spring MareKromium
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Craters-Buried_Crater-01.jpgUnder the Sand (Absolute Natural Colors; credits for the additional process. and color.: Dr Paolo C. Fienga - Lunexit Team)216 visiteCaption NASA originale:"This MGS-MOC image shows a partially-buried crater in the North Polar Region of Mars.
The circular feature is surrounded and partly overlain by some of the many, many sand dunes in the area. The steepest slopes on each dune — their "slip faces" — face toward the SouthEast, indicating that the dominant winds responsible for sand transport in this Region come from the NorthWest".
Location near: 76,0° North; 82,2° West
Image width: ~3 Km (~1,9 mi)
Illumination from: lower left
Season: Northern SpringMareKromium
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